Heating apparatus



1. l. HERBERT.

HEATING APPARATUS. APPLICATION FILED JULY 29, I920.

Patented May 16, 1922.

a W1, w W W uuireo STATES PATENT OFFICE."-

J'OSEPH I. HERBERT, 0E CHICAGO, ILLINOIS.

HriA'riNe APPARATUS.

Specificationof Letters Patent. Patcntcd May 16, 1922;

Application filed July 29, 1920. Serial No. 399,867. I

trically heated vapor or steam-generating.

apparatus which may be used as a unit with a single radiator or the like, or which may be applied to a battery of radiators, if so desired.

An object of my invention is to providesuch a heating unit in which the minimum amount of water subjected to heating is maintained approximately constant, thereby permitting the use of a minimum body of water and accomplishing the desired heating effect with the use of a minimum amount of electric current.

Another object resides in the provision of means to impart a preliminary heatingto the incoming water.

Still another object resides in the provision of the various details of construction;

and other objects will be more fully set forth and described in the following SPGClfiCLtlOIl and shown in the accompanying drawing, in which-- Figure 1 is a vertical section of an apparatus embodying my invention; and

v F 2 is a side elevation of a radiator.

showing my apparatus applied thereto.

Like numerals denote like elements throughout the drawing, in which- 10 indicates a casing which is, in effect, a tank in which is maintained a body of water 11. An inlet pipe 12 extends through the casing, terminating in the upwardly curved elbow 12 normally submerged beneath the body of water. A nipple 13, hav ing a wrench engageable portion 13 is threaded into engagement with the elbow 12 and is provided with a central aperture 13" terminating at its upper end in the valve seat 13. The tube 14 is threaded to the upper end of the nipple 13, being provided with outlet ports 141 adjacent its lower portion. Adjacent its upper portion the tube 14!: is provided with opposed pairs of spaced lugs 14?, between each pair of which is pivoted anarm 15. The arms are pivoted on the pin 16 or the like and carry enlarged or ball-shaped portions 15*" at their outer extremities. At their inner extremities 15? the arms 1.5 engage the spaced apart peripheral flanges 17 of the sleeve 17, which, in turn, surrounds the valve stem 18", carrying at its lower extremity the valve 18 normallv seating on the seat 13. The stem 18* is threaded at 18* a rotatable nut 19 engages such threaded portion to adjust the position of the valve as desired. Surrounding the tube 1 1, to vertically reciprocate free thereof, is the hollow at its upper extremity, and

float or buoy 20, upon the tube of which rest the ball portions 15 of the arms 15. j

The casing or tank 10 is provided with a suitable aperture 10 in the bottom thereof,

through which projects the casing 25, within which is located an electric heating coil 26 mounted on a core 27 of asbestos, bakelite, or other suitable insulating material. The casing is formed with a peripheral flange E25 resting upon a, gasket 28. further threaded at its lower portion 25, which projects downwardly from the tank 10, a nut 29 engaging this threaded portion to draw this flange 25 into proper engagement with the gasket to prevent leakage. The terminals 26 and 26 of the electric heating coil lead to thesocketsSO, in which may be plugged the terminals 31 of the plug 31 carried by the main feed wire 32.

At one side of the casing 10 is provided an inlet opening 109, suitably communicating with which is return pipe having a flange 33 and a threaded extremity 33 engaged by the nut The pipe and union, generally indicated by 36, is coupled to pipe 33 v and leads to the boss 37 carried by the radiator 37, which is shown as of conventional construction. The tank 10 is provided with a cover 10 threadableinto closing position,

between the cover and tank to prevent leakage of gas or fluid. The cover is provided with an outlet duct 10?,which, in turn, communicates with a steam or vapor pipe 41 The casing is I agasket or packing ring 4.0 being. locatedshort circuit of travel, and a con equcnt increase in efliciency of heating.

To replace the relatively small amoiuit of fluid utilized in this heatin operation. the float 20 will function to permit dropping ol the ball ends 1.5 of the arms 15 upon a lowering of the fluid level in the tank '10. This movement of the arms results in t raising of the sleeve 17 and lifting; of the valve 18 from the seat 13, whereupon fluid will be supplied through inlet 12 into the tank through the apertures 141;. The elboiv 12 and pipe 12, being l31.eatcd from immersion in the body of fluid ll, vrill pro-heat the incoming fluid, thereby increasing the efliciency of? the apparatus.

As soon as the supply oi fluid reaches the desired level the fluid 20 will raise the balls 15, thereby closing the valve 18 and cuttin ofl' further flow.

XS illustrated in Fig. 2 ot the drawings, I am enabled to apply individual heating units to each radiator, with consequent it increase in efliciency over present-day apparatus, thereby greatly decreasing the cost ol. heating and the amount of fluid utilized.

It Will be obvious that my invention is susceptible of numerous in'iprovements and modifications, and I do not therefore wish to be restricted thereto, except as defined in the appended claims.

1. In apparatus of the class described, comprising a radiator, a steam supply pipe. and a condensation exhaust pipe leading to and from said radiator respectively, a tank located adjacent said radiator, slid supply and exhaust ducts leadin 'g from and to said tank respectively, a heating unit located in said tank, means to supply fluid to said tank, and means to maintain the level of said fluid constant.

2. In apparatus of the class described a heating unit comprising a tank, a heating" member located therein to heat the contents thereof, a fluid supply duct extending into the interior of said tank, a valve normalhv closing said duct, and means actuated by the fluid in said tank to close or open said valve.

3. In apparatus of the class described, a heating unit comprising a tank, an electric heating element located therein, means to supply fluid to said tank, and means to maintain the level of said fluid constant, said last-named means comprising a float, an adjustable reciprocable valve and arms actuatable by said float and operably engaging said valve.

4.. In apparatus of the class described, a heating; unit comprising a tank, a heating element comprising an encased electric heat ing coil projecting into said tank, and means to supply fluid to said tank after prel'ieating: by said heating element.

ln a; paratus of the class described, a heating unit compi'sing a tank, a heating element comprising an encased electric heatinc coil projecting into said tank, and. means to supply fluid to said tank, said tank being provided with a return duct opening; thercinto below the fluid level o'l. said tank and a vapor outlet duct.

In apparatus of the class described, a heating unit comprising a tank, a heating element comprising an encased electric heating; coil projecting into said tank, and. means to supply fluid to said tank, said tank being provided with a return duct openingthere- .into below the fluid level of said. tank and a vapor outlet duct, said tank being provided with a sealing cover.

7. ln apparatus of the class described. a heating unit comprising a tank, a heating element located therein to heat the contents thercoil means to supply fluid to said tank, said means comprising a supply duct located in said tank beneath the fluid level thereof whereby the ll'lllOWllhQ fluid is nreheated.

b. l apparatus of the class described, a heat' unit comprising a tank, a heating eleme located therein to heat the contents thereo'l. means to supply fluid to said tank, said means comprising a supply ductlocated in said tank beneath the fluid level thereof, 1d means to maintain such fluid level aproximately constant.

In testimony whereof, I have subscribed my name.

JOSEPH I. HERBERT. 

